HG/T 20592  法兰 WN 500-63 RFFF��XFRF6B)5F&@tF

WN 500-63RFFF��XFRF6B)5F&@tF

so50(a)-16mhg/F sch40s16 RF S=6400-0.s=6.305 B13 n RD=160-20

so15-1500 rj..6/forum.html

SO 40-300 RF

PL 300(B)-25 RFh80ss

WN 500-150 RF B=496¶-R

20615 lwn300-300 rf sc

法兰WN40-300FM0

WN 300(B)-16 GcFh5 RJ/0rf s